diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 5a8c8cef1ea628702cee4dabfc87ee4d089ebb36..8b269ae253af2441f697ddf5d4db7b180ac14430 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -11,11 +11,11 @@ Please follow the house rules to have a bigger chance of your contribution being
  - If you want to modify the CSS, please edit the SCSS files present in `style/`: `main.scss` and others. Don't edit the `main.css`, because it's supposed to be generated.  
  In order to compile your SCSS modifications, you need to use the `sass` gem (install it by running `gem install sass` once Ruby is installed).  
  To run SASS, simply use the following command:  
- `sass --watch style/main.scss`  
+ `sass --unix-newlines --watch style/main.scss`  
  SASS will automatically recompile your css when changed.
  - `Rakefile` contains some tasks that help during development. Feel free to add useful tasks if needed.
  - Please use 2-space indentation when editing the JavaScript. A `.jshintrc` file is present, which will help your code to follow the guidelines if you install and run `jshint`.
- - Please test your modification thouroughly before submitting your Pull Request.
+ - Please test your modification thoroughly before submitting your Pull Request.
 
 ### Changes that might not be accepted
 We have to be conservative with the core game. This means that some modifications won't be merged, or will have to be evaluated carefully before being merged:
diff --git a/README.md b/README.md
index 1c4f46d6f5ced86f767a27ea54b702c1384e56f8..6b1da3879438d5df3044637f25b079705a09e4c5 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ Other notable contributors:
 
  - [TimPetricola](https://github.com/TimPetricola) added best score storage
  - [chrisprice](https://github.com/chrisprice) added custom code for swipe handling on mobile
- - [elektryk](https://github.com/elektryk) made swipes work on Windows Phone
+ - [marcingajda](https://github.com/marcingajda) made swipes work on Windows Phone
  - [mgarciaisaia](https://github.com/mgarciaisaia) added support for Android 2.3
 
 Many thanks to [rayhaanj](https://github.com/rayhaanj), [Mechazawa](https://github.com/Mechazawa), [grant](https://github.com/grant), [remram44](https://github.com/remram44) and [ghoullier](https://github.com/ghoullier) for the many other good contributions.
@@ -21,7 +21,7 @@ Many thanks to [rayhaanj](https://github.com/rayhaanj), [Mechazawa](https://gith
 ### Screenshot
 
 <p align="center">
-  <img src="http://pictures.gabrielecirulli.com/2048-20140309-234100.png" alt="Screenshot"/>
+  <img src="https://cloud.githubusercontent.com/assets/1175750/8614312/280e5dc2-26f1-11e5-9f1f-5891c3ca8b26.png" alt="Screenshot"/>
 </p>
 
 That screenshot is fake, by the way. I never reached 2048 :smile:
diff --git a/cache.appcache b/cache.appcache
index 1af2ea59de2da7eeabadef36f5acae78af1e2e02..fa4f792f9602f8b881b0caba43b4c69fda6580a5 100644
--- a/cache.appcache
+++ b/cache.appcache
@@ -3,7 +3,7 @@ CACHE MANIFEST
 # Adds the ability to play the game online.
 # The following comment needs to be updated whenever a change is made.
 # Run `rake appcache:update` to do so
-# Updated: 2014-12-10T12:13:34-08:00
+# Updated: 2015-10-20T11:14:00-08:00
 
 # Main page
 index.html
diff --git a/js/keyboard_input_manager.js b/js/keyboard_input_manager.js
index e8768edb773a78fb42298c8e1a9421e7d5f89a29..a39484e410bda56d76768cc943e0e998376d4b39 100644
--- a/js/keyboard_input_manager.js
+++ b/js/keyboard_input_manager.js
@@ -82,7 +82,7 @@ KeyboardInputManager.prototype.listen = function () {
 
   gameContainer.addEventListener(this.eventTouchstart, function (event) {
     if ((!window.navigator.msPointerEnabled && event.touches.length > 1) ||
-        event.targetTouches > 1 ||
+        event.targetTouches.length > 1 ||
         self.targetIsInput(event)) {
       return; // Ignore if touching with more than 1 finger or touching input
     }
@@ -104,7 +104,7 @@ KeyboardInputManager.prototype.listen = function () {
 
   gameContainer.addEventListener(this.eventTouchend, function (event) {
     if ((!window.navigator.msPointerEnabled && event.touches.length > 0) ||
-        event.targetTouches > 0 ||
+        event.targetTouches.length > 0 ||
         self.targetIsInput(event)) {
       return; // Ignore if still touching with one or more fingers or input
     }
diff --git a/style/helpers.scss b/style/helpers.scss
index 3786bc09ae2c21b9c4c6612da26a216fced30c69..f0e24d5cc0f8fdbd022c86f77a3fc38cc052910f 100644
--- a/style/helpers.scss
+++ b/style/helpers.scss
@@ -48,6 +48,7 @@
 @mixin transform($args...) {
   -webkit-transform: $args;
   -moz-transform: $args;
+  -ms-transform: $args;
   transform: $args;
 }
 
diff --git a/style/main.css b/style/main.css
index e9c4f38bdc3e005e5452bfe1babafb098a7d1ac1..ba714602b0fec6d6553723fda7bf8b1b972fd648 100644
--- a/style/main.css
+++ b/style/main.css
@@ -314,66 +314,82 @@ hr {
 .tile.tile-position-1-1 {
   -webkit-transform: translate(0px, 0px);
   -moz-transform: translate(0px, 0px);
+  -ms-transform: translate(0px, 0px);
   transform: translate(0px, 0px); }
 .tile.tile-position-1-2 {
   -webkit-transform: translate(0px, 121px);
   -moz-transform: translate(0px, 121px);
+  -ms-transform: translate(0px, 121px);
   transform: translate(0px, 121px); }
 .tile.tile-position-1-3 {
   -webkit-transform: translate(0px, 242px);
   -moz-transform: translate(0px, 242px);
+  -ms-transform: translate(0px, 242px);
   transform: translate(0px, 242px); }
 .tile.tile-position-1-4 {
   -webkit-transform: translate(0px, 363px);
   -moz-transform: translate(0px, 363px);
+  -ms-transform: translate(0px, 363px);
   transform: translate(0px, 363px); }
 .tile.tile-position-2-1 {
   -webkit-transform: translate(121px, 0px);
   -moz-transform: translate(121px, 0px);
+  -ms-transform: translate(121px, 0px);
   transform: translate(121px, 0px); }
 .tile.tile-position-2-2 {
   -webkit-transform: translate(121px, 121px);
   -moz-transform: translate(121px, 121px);
+  -ms-transform: translate(121px, 121px);
   transform: translate(121px, 121px); }
 .tile.tile-position-2-3 {
   -webkit-transform: translate(121px, 242px);
   -moz-transform: translate(121px, 242px);
+  -ms-transform: translate(121px, 242px);
   transform: translate(121px, 242px); }
 .tile.tile-position-2-4 {
   -webkit-transform: translate(121px, 363px);
   -moz-transform: translate(121px, 363px);
+  -ms-transform: translate(121px, 363px);
   transform: translate(121px, 363px); }
 .tile.tile-position-3-1 {
   -webkit-transform: translate(242px, 0px);
   -moz-transform: translate(242px, 0px);
+  -ms-transform: translate(242px, 0px);
   transform: translate(242px, 0px); }
 .tile.tile-position-3-2 {
   -webkit-transform: translate(242px, 121px);
   -moz-transform: translate(242px, 121px);
+  -ms-transform: translate(242px, 121px);
   transform: translate(242px, 121px); }
 .tile.tile-position-3-3 {
   -webkit-transform: translate(242px, 242px);
   -moz-transform: translate(242px, 242px);
+  -ms-transform: translate(242px, 242px);
   transform: translate(242px, 242px); }
 .tile.tile-position-3-4 {
   -webkit-transform: translate(242px, 363px);
   -moz-transform: translate(242px, 363px);
+  -ms-transform: translate(242px, 363px);
   transform: translate(242px, 363px); }
 .tile.tile-position-4-1 {
   -webkit-transform: translate(363px, 0px);
   -moz-transform: translate(363px, 0px);
+  -ms-transform: translate(363px, 0px);
   transform: translate(363px, 0px); }
 .tile.tile-position-4-2 {
   -webkit-transform: translate(363px, 121px);
   -moz-transform: translate(363px, 121px);
+  -ms-transform: translate(363px, 121px);
   transform: translate(363px, 121px); }
 .tile.tile-position-4-3 {
   -webkit-transform: translate(363px, 242px);
   -moz-transform: translate(363px, 242px);
+  -ms-transform: translate(363px, 242px);
   transform: translate(363px, 242px); }
 .tile.tile-position-4-4 {
   -webkit-transform: translate(363px, 363px);
   -moz-transform: translate(363px, 363px);
+  -ms-transform: translate(363px, 363px);
   transform: translate(363px, 363px); }
 
 .tile {
@@ -462,36 +478,42 @@ hr {
     opacity: 0;
     -webkit-transform: scale(0);
     -moz-transform: scale(0);
+    -ms-transform: scale(0);
     transform: scale(0); }
 
   100% {
     opacity: 1;
     -webkit-transform: scale(1);
     -moz-transform: scale(1);
+    -ms-transform: scale(1);
     transform: scale(1); } }
 @-moz-keyframes appear {
   0% {
     opacity: 0;
     -webkit-transform: scale(0);
     -moz-transform: scale(0);
+    -ms-transform: scale(0);
     transform: scale(0); }
 
   100% {
     opacity: 1;
     -webkit-transform: scale(1);
     -moz-transform: scale(1);
+    -ms-transform: scale(1);
     transform: scale(1); } }
 @keyframes appear {
   0% {
     opacity: 0;
     -webkit-transform: scale(0);
     -moz-transform: scale(0);
+    -ms-transform: scale(0);
     transform: scale(0); }
 
   100% {
     opacity: 1;
     -webkit-transform: scale(1);
     -moz-transform: scale(1);
+    -ms-transform: scale(1);
     transform: scale(1); } }
 .tile-new .tile-inner {
   -webkit-animation: appear 200ms ease 100ms;
@@ -505,46 +527,55 @@ hr {
   0% {
     -webkit-transform: scale(0);
     -moz-transform: scale(0);
+    -ms-transform: scale(0);
     transform: scale(0); }
 
   50% {
     -webkit-transform: scale(1.2);
     -moz-transform: scale(1.2);
+    -ms-transform: scale(1.2);
     transform: scale(1.2); }
 
   100% {
     -webkit-transform: scale(1);
     -moz-transform: scale(1);
+    -ms-transform: scale(1);
     transform: scale(1); } }
 @-moz-keyframes pop {
   0% {
     -webkit-transform: scale(0);
     -moz-transform: scale(0);
+    -ms-transform: scale(0);
     transform: scale(0); }
 
   50% {
     -webkit-transform: scale(1.2);
     -moz-transform: scale(1.2);
+    -ms-transform: scale(1.2);
     transform: scale(1.2); }
 
   100% {
     -webkit-transform: scale(1);
     -moz-transform: scale(1);
+    -ms-transform: scale(1);
     transform: scale(1); } }
 @keyframes pop {
   0% {
     -webkit-transform: scale(0);
     -moz-transform: scale(0);
+    -ms-transform: scale(0);
     transform: scale(0); }
 
   50% {
     -webkit-transform: scale(1.2);
     -moz-transform: scale(1.2);
+    -ms-transform: scale(1.2);
     transform: scale(1.2); }
 
   100% {
     -webkit-transform: scale(1);
     -moz-transform: scale(1);
+    -ms-transform: scale(1);
     transform: scale(1); } }
 .tile-merged .tile-inner {
   z-index: 20;
@@ -753,66 +784,82 @@ hr {
   .tile.tile-position-1-1 {
     -webkit-transform: translate(0px, 0px);
     -moz-transform: translate(0px, 0px);
+    -ms-transform: translate(0px, 0px);
     transform: translate(0px, 0px); }
   .tile.tile-position-1-2 {
     -webkit-transform: translate(0px, 67px);
     -moz-transform: translate(0px, 67px);
+    -ms-transform: translate(0px, 67px);
     transform: translate(0px, 67px); }
   .tile.tile-position-1-3 {
     -webkit-transform: translate(0px, 135px);
     -moz-transform: translate(0px, 135px);
+    -ms-transform: translate(0px, 135px);
     transform: translate(0px, 135px); }
   .tile.tile-position-1-4 {
     -webkit-transform: translate(0px, 202px);
     -moz-transform: translate(0px, 202px);
+    -ms-transform: translate(0px, 202px);
     transform: translate(0px, 202px); }
   .tile.tile-position-2-1 {
     -webkit-transform: translate(67px, 0px);
     -moz-transform: translate(67px, 0px);
+    -ms-transform: translate(67px, 0px);
     transform: translate(67px, 0px); }
   .tile.tile-position-2-2 {
     -webkit-transform: translate(67px, 67px);
     -moz-transform: translate(67px, 67px);
+    -ms-transform: translate(67px, 67px);
     transform: translate(67px, 67px); }
   .tile.tile-position-2-3 {
     -webkit-transform: translate(67px, 135px);
     -moz-transform: translate(67px, 135px);
+    -ms-transform: translate(67px, 135px);
     transform: translate(67px, 135px); }
   .tile.tile-position-2-4 {
     -webkit-transform: translate(67px, 202px);
     -moz-transform: translate(67px, 202px);
+    -ms-transform: translate(67px, 202px);
     transform: translate(67px, 202px); }
   .tile.tile-position-3-1 {
     -webkit-transform: translate(135px, 0px);
     -moz-transform: translate(135px, 0px);
+    -ms-transform: translate(135px, 0px);
     transform: translate(135px, 0px); }
   .tile.tile-position-3-2 {
     -webkit-transform: translate(135px, 67px);
     -moz-transform: translate(135px, 67px);
+    -ms-transform: translate(135px, 67px);
     transform: translate(135px, 67px); }
   .tile.tile-position-3-3 {
     -webkit-transform: translate(135px, 135px);
     -moz-transform: translate(135px, 135px);
+    -ms-transform: translate(135px, 135px);
     transform: translate(135px, 135px); }
   .tile.tile-position-3-4 {
     -webkit-transform: translate(135px, 202px);
     -moz-transform: translate(135px, 202px);
+    -ms-transform: translate(135px, 202px);
     transform: translate(135px, 202px); }
   .tile.tile-position-4-1 {
     -webkit-transform: translate(202px, 0px);
     -moz-transform: translate(202px, 0px);
+    -ms-transform: translate(202px, 0px);
     transform: translate(202px, 0px); }
   .tile.tile-position-4-2 {
     -webkit-transform: translate(202px, 67px);
     -moz-transform: translate(202px, 67px);
+    -ms-transform: translate(202px, 67px);
     transform: translate(202px, 67px); }
   .tile.tile-position-4-3 {
     -webkit-transform: translate(202px, 135px);
     -moz-transform: translate(202px, 135px);
+    -ms-transform: translate(202px, 135px);
     transform: translate(202px, 135px); }
   .tile.tile-position-4-4 {
     -webkit-transform: translate(202px, 202px);
     -moz-transform: translate(202px, 202px);
+    -ms-transform: translate(202px, 202px);
     transform: translate(202px, 202px); }
 
   .tile .tile-inner {